Blotting attachment for fountain pens



Dec. 15, 1936. A. R. KNQRR 2,064,067

BLOTTING ATTACHMENT FOR FOUNTAIN PENS Filed May 1935 I [JV/5 Invenlor Afwooc/ K7107? Patented Dec. 15, 1936 UNQHTED STATES BLOTTING ATTAOHIlEWENT FOR FOUNTAIN I j P NS Atwood R. Knorr, Berwick Pa. Application May 8, 1935, Serial N0. 20,462

5 Claims.

This invention relates to a blotting attachment for fountain pens.

The primary object of the invention is to form the closure cap of a fountain pen with a rotatable drum that carries a roll of blotting paper which may be projected or retracted by merely turning the drum.

Another feature of the present invention is to provide a door in the side of the closure cap which opens and closes at predetermined times in response to the movement of the drum so that the door will open and allow the blotter to be extended and to close when the blotter has been retracted within the cap.

Another feature of the present invention is to provide an absorbing pad on one end of the drum that has a wiping engagement with the writing end of the barrel of the fountain pen so that the writing end may be cleaned of ink.

With the foregoing and other objects in view the invention consists of a novel construction, combination and arrangement of parts as will be hereinafter more specifically described and illustrated in the accompanying drawing wherein is disclosed an embodiment of the invention, but it is to be understood that changes, variations and modifications may be resorted to without departing from the spirit of the claims hereunto appended.

- In the drawing wherein like reference characters denote corresponding parts-throughout the several views:

Figure 1 is a fragmentary elevation of the writing end of the barrel of a fountain pen showing the cap in accordance with the present invention applied thereto which cap is shown in a detailed axial sectional view.

Figure 2 is a detailed diametric section through the cap taken substantially on the line 2-2 of Figure 1 and looking in the direction of the arrows.

Figure 8 is a perspective View of the drum removed from the cap.

Figure 4 is a perspective view of the door.

Figure 5 is a fragmentary elevation of the lower end of the drum.

Referring to the drawing in detail, A indicates the barrel of a fountain pen of the conventional structure formed with a smooth writing end 6 from which projects the Writing nib Adjacent the smooth end are screw threads 8 by which the cap is attached to the writing end of the pen. This construction of the barrel of the fountain pen is conventional in the art and the cap in accordance with the present invention is made to conform to the conventional barrels of fountain pens.

' The cap constructed inaocordance with the present invention is indicatedxat B and is made of a sleeve 9 the walls" of which are thickened adjacent the lower end. -An intermediate por tion of the thickened walls is threaded as at Ill to receive the threads 8'on'the barrel of the fountain pen when the cap is over the writing end of the pen. Adjacent the threads I is a smoothed tapered portion H on the inner end of the sleeve which frictionally engages the blunt end of the barrel when the pen is being used for writing. The outer end of the sleeve 9 is open. Above the thick walls sleeve 9 has an interior race 23a formed aroundthe inside to rotatably receive the bead on the socket as will appear later. Between the' open end of sleeve 9 and the thickened lower end thereof is an elongated opening 12 and"thewalls'about the opening are tapered. For closing the elongated opening 12 there is a .door I3"having the edgesithereof tapering to conformably fit in the tapering walls of the opening so that the door will open inwardly as shown in. dotted lines in Figure 2 of the drawing.

Adjacent the upper end of the opening l2 on the inside of the sleeve 9 is secured a hinge sleeve. I4 that receives an inset trunnion I anchored to the upper end of the door I3. Anchored to the lowerend of the door is a wire member of flexible nature indicated at C. This wire member has a 'rightangled extension 16 adjacent the lower end of the door which merges in. a larger angular extension I! that in turn terminates in a lip l8. The first angular extension l6 forms a trunnion that is journaled in a .hinge. sleeve l9 secured inside the sleeve 9 adjacent the lower end of the door opening l2. The second angular extension projects outwardly into the chamber of sleeve 9 while the lip l8 bears on the inside of the sleeeve all of which is clearly shown in Figure 2 of the drawing.

The letter D indicates a hollow metal drum which is partly confined in the sleeve 9. An intermediate portion of the drum D is reduced to provide a cylindrical spool 20 on which is wound the strip of blotting paper 2|. Next to the spool 20 at the inner end of the drum is an outset socket 22 and this socket has an outset bead 23 on its free end. The bead is radially split at circumferentially spaced intervals as at 24 to permit the bead to be flexed to change the annu lar pad 25 detachably mounted in the socket 22. Bead. 23 rides in annular race 23a. and is flexed into and out of the race by pulling or pushing on the drum D. The center of pad 25 has a round opening 26 which has a wiping abutment with the writing end 6 of the barrel so as to free the writing end of ink as the barrel is inserted and removed from the chamber 21 of the drum.

In the outer face of the socket 22 is a segmental pocket or cavity 28 which extends from the bead 23 inwardly a portion of the width of the socket. Adjacent the outer end of the socket there are screw threads fashioned in a spiral manner and these screw threads are indicated at 29. The inner end of the screw threads terminate as at 30 in the cavity 28. The outer end of the drum D is formed with a cylindrical knob 3| which merges with an inset shoulder 32. The knob 3| forms a closure for the outer end of the sleeve 9, the shoulder 32 slidably and rotatably engaging with the inner face of the sleeve at the outer end thereof. Adjacent the shoulder 32 the drum is formed with an inset shoulder 33 stepped relative to the shoulder 32 and this shoulder 33 merges with the outer end of spool 20. A wire blotter support 34 bridges the spool 20 having the upper end of the wire hinged to the shoulder 33 as at 35. The inner end of wire 34 extends into an opening in the socket 22 as at 36. By flexing an intermediate portion of the wire 34 the free end may be disengaged from the opening in the socket so that the strip blotter may be replenished when desired. The inner end of the blotter is looped around the wire 34 as at 31 so that when the drum D is turned by the knob 3| the blotter is extended from or retracted into the sleeve 9. When the blotter 2| is wound on the spool 20 the free end 38 of the blotter is disposed adjacent the door l3, on the inside of the sleeve 9. In the closed position, the apex of the angular portion H is seated in the cavity 28. To project the blotter 2| for use the knob 3| is turned in a counterclockwise direction with respect to Figure 2 of the drawing. This movement results in moving member out of cavity 28 with the apex tracking in the terminal 30 of the thread and further movement will cause the apex to ride in the thread as the knob is turned further. When member l1 tracks in the thread it flexes to the dotted line position shown in Figure 2 of the drawing which results in opening the door l3 inwardly. When the end 38 of the blotter 2| reaches the opening the door forms an abutment to train the free end of the blotter through the opening and further turning of the knob causes thestrip of blotting paper to be projected further to a length as desired. To retract the blotter, the knob is turned in the opposite direction which movement will continue until the end 38 of the blotter is on the inside of the sleeve 9 when member drops from terminal 30 of the thread into the cavity 28 which action closes the door I3.

Having thus described the invention, what is claimed as new is:

1. The combination with a fountain pen cap of a rotatable drum mounted in the cap, a door carried by the cap, a blotter rolled on the drum, and means coacting with the drum for controlling the opening and closing of the door in response to the movement of the drum.

2. The combination with a fountain pen cap of a rotatable drum mounted in the cap, a door swingingly mounted on the cap, a blotter rolled on the drum, means coacting with the drum for controlling the opening and closing of the door in response to the movement of the drum, and means on one end of the drum forming a closure for the cap.

3. The combination with a fountain pen cap of a rotatable drum mounted in the cap, a door in the cap, a blotter rolled on the drum, means coacting with the drum for controlling the opening and closing of the door in response to the movement of the drum, means on one end of the drum forming a closure for the cap, a socket formed on the other end of the drum, and a ring of absorbing material carried by the socket for wiping the barrel of a fountain pen as the cap is transposed from one end of the barrel to the other.

4. The combination with a fountain pen cap including an interior race of a rotatable drum mounted in the cap, a door in the cap, a blotter rolled on the drum, means for controlling the opening and closing of the door, means on one end ofthe drum forming a closure for the cap, a socket formed on the other end of the drum, a ring of absorbing material carried by the socket for cleaning the barrel of a fountain pen as the cap is transposed from one end of the barrel to the other, said socket formed with a bead on the edge coacting with the annular race in the cap for locking and holding the drum in the cap so that when a renewal of either the blotter or absorbing pad is desired the drum may be removed from and again inserted in the cap quickly and easily.

5. A fountain pen cap of the character that is adapted to be mounted on and fit over either end of a fountain pen, a drum rotatably mounted in the cap and into which the writing end of the pen extends when the cap is mounted on the writing end of the pen and an ink absorbent member carried by the drum whereby the writing end of the pen is wiped free of ink.

ATWOOD R. KNORR. 

